If there's already a working solution in a proper renderer - why do concepting in a realtime engine at all? All that time spent importing and fiddling in some obscure dialog and compensating for the kind of optimizations built for games when you could instead set up a nice reusable, script-able scene in the 3d app of…
@pior I think you misread that last sentence a little, or my comprehension is failing me. I think he's talking about having all the necessary precomputation done automatically in engine and applied automatically at the shader level, so from an artist perspective you just import a model and invoke the magic words: "Hell…